Urban heat islands are regions that experience higher temperatures than surrounding areas, primarily due to the concentration of buildings, roads and other structures that absorb and re-emit heat. As climate change leads to higher temperatures, urban heat values are likely to increase. In Missouri, high summer temperatures and high humidity are exacerbated in urban areas, where temperatures can be 2 to 10 degrees hotter than their surroundings. This can increase overall energy use and lead to dangerous conditions for those without access to air conditioning or other ways to stay cool (e.g., green roofs, weatherproof buildings). Scientific research indicates that green infrastructure, including cool pavement, tree canopies and park space within urban areas, is an effective way to offset urban heat island effects.